Silky Rosegill

Volvariella bombycina

Also known as Silky Sheath, Silver-silk Straw Mushroom.

Silky RosegillBernypisa / CC BY-SA 2.5

About this fungus

Silky Rosegill is a fungus in the Pluteaceae family. Its habitat and field characteristics are summarised below.

A large silky white to cream mushroom growing directly from hardwood, with free gills that mature pink, no stem ring and a substantial cup-like volva at the base.

What to check

Confirm direct growth from dead hardwood or a damaged area of a living tree. Mature gills and the spore print should be pinkish-brown, the gills are free from the stem, and there is no ring. Expose the full cup-like volva. Young gills can still be white, so immature specimens cannot be separated safely from pale Amanita by gill colour alone.

Variation

The cap starts oval or conical and opens through bell-shaped to broadly convex or nearly flat. Its white silky fibres can yellow or brown with age, especially near the centre, and the volva also darkens from white to yellow-brown.

Lookalikes

Pale Amanita species are the critical comparison because they can also have white young gills and a volva, and some are deadly. Mature pink spores, absence of a ring and direct growth from wood support Volvariella, but none should be used alone. Volvopluteus gloiocephalus usually grows from soil, compost or grass rather than intact hardwood.

Habitat and range

Saprotrophic on hardwood logs, stumps, cavities and wounds of living broadleaf trees. It is reported from Europe, Asia and North America, but North American collections show enough variation that future DNA study may refine the species concept.

Food safety

Edible, with caution.

Never munch on a hunch
Use this profile to learn what to examine and compare, not as proof that a mushroom is safe to eat. Check the whole specimen and every important lookalike before reaching an identification.

Photographs

Further reading

Wikipedia · First Nature · MushroomExpert.com

A glimpse of the research.

Weather response

A repeatable weather association was found in the records, alongside the usual seasonal pattern.

These are patterns in recorded observations, not rules, forecasts or identification evidence. Local conditions and recording patterns can affect the findings.

Read six species examples →